There is a lot of free advice floating around the internet. Lots of questions we face have been answered by others! Here's my "greatest hits" of academic advice, organized by career stage.
NOTE: For my time tracking template, click here.
For applying to / picking / and starting grad school:
Wait, should you go to grad school? Advice (and links) from Daniel Laurison
Tressie McMillan Cottom's Graduate School Guidance (with a focus for students of color)
Information on Minnesota's graduate training in Sociology
For current graduate students:
Jessica Calarco's "Grad School's Hidden Curriculum" on Scatterplot
Neil Lewis Jr. and Jay Van Bavel's excellent workshop Demystifying the Academic Job Market
For graduate students & assistant professors:
My template for tracking your hours & setting goals
For students interested in non-academic and/or non-traditional careers:
Karen Kelsky's "The Professor Is In" Blog (see section on "Post-AC Help")